bailey



(No Model.) I J. W. BAILEY 82;. B. .B. WARFIELD.

' ORE GONGENTRATING MACHINE.

110.291. 270; Patented Jan. 1, 1884.

.- Whelsw;

UNITED STATES PATENT Orricn.

JOHN W. BAILEY, OF DENVER, AND BURGESS B. IVARFIELD, OF HOLY GROSS, COLORADO.

SPECIFICATION forming part of Letters Patent No. 291,270, dated January 1, 1884.

- Application filed September 3, 1883. (No model.)

Too/ll whom it may concern.-

, Be it known that we, JOHN W. BAILEY, of Denver, in the county of'Arapahoe and State of Colorado, and BURGESS B. VVARFIELD, of

, Holy Cross, in the county of Eagle, also in the State of Colorado, have invented certain new and useful Improvements in Ore-Concentrating Machines, of which the following is a specification, reference being'had to the accompanying drawing, and to the letters of reference marked thereon;

Our invention relates to ore-concentrating machines" or apparatus; and it consists in the improved construction and combinations of parts, hereinafter more fully described and claimed, whereby the effective concentration ofthe ore from the worthless portion of the stock is attained, the operation of the machine made positive and reliable, and the movements of the working parts thereof regulated to secure a maximum or minimum result.

In the accompanying drawing the figure represents, in perspective, an ore-concentrating apparatus constructed in accordance with our invention.

A represents a shallow box or receptacle of any suitable size or material, and having the sidesa a and end section b. The other end section 0 of said box is inclined, as shown, for a purpose described hereinafter.

Within the box A, and for a distance above the bottom, B, of the same, is a rectangular diaphragm or false bottom, 0, of metalor other desirable material, the forward end, d, of which is inclined to coincide with the end section 0 of the box. The body of the said diaphragm or false bottom is provided with a series of perforations, e, which communicate with the chamber D, formed by the space between the bottom proper, B, of the box A and the diaphragm C. The section b of the box A is cut away to constitute a riffle-bar at that end of the receptacle. The box or receptacle A is suspendedbymeans of rods f f, secured to any point above the box or receptacle, and pro-. vided at their lower ends with hooks g, which engage loops h, secured-at or near the corners of the box A.

Secured transversely of the box-or receptacle Aisarectangular hopperor feed-trough,E,pro;-

vided with orifices i in its bottom. A bar, F, is also secured transversely of the box or receptacle A, and parallel with the feed-hopper E, and has centrally secured thereto one end, j, of a connecting-rod, G, the other end, 70, of which passes through an opening in the lower end of a depending bar, H, the said end of the rod G being threaded to receive a thumb-nut, Z, which clamps it to the depending bar H. A

J, is adapted to strike and oscillate said decates with the space between the bottom proper of the box A and the diaphragm O, and serves to admit Water under pressure thereto, acock or valve, m, permitting the flow to be controlled or regulated by the attendant.

In proximity to the end 61 of the box or receptacle A is an abutment post or standard, M, adapted to receive the impact of the edge of the bottom of the box or receptacle A as the cam I vibrates the same through the agency of the intermediate connections. Cushions or pads o n are respectively secured to the post or standard M and edge of the bottom of the box A, so as to reduce the wear on said parts. Oontracting-sprin gs N are fastened both to the post or standard M and the bottom of the box A, so as to hold said box normally against the standard M. The stock being placed in the feed-hopper E, as the machine is operated it is fed down and dispersed evenly over the diaphragm. The valve m of the pipe K is turned to cause water to fill the space beneath the diaphragm O, the effect being the issuanceofnumerous small jets or streams through the perforations of said diaphragm, causing the lighter and valueless portions of the stock to be washed to the surface, the heavier and more valuable substance gradually working to the bottom by gravity. Ooincidently with this operation the shaft J is revolved, causing the cam I to intermittently force the depending bar H therefrom, thus moving the box A away from the post M by reason of the connecting-rod G. As the projecting face of the cam I moves from contact with the depending bar H, after having forced it to its-limit, the contracting-springs N, whichhaxe been distended, pull the box baek, causing its bottom edge to strike against pending bar H. A flexible pipe, K, communi cam, I, mounted on and turning with a shaft, 60

the abutment-post M, moving and disturbing the contents of the box A, so as to bring new portions of the stock above the jets to be sub jeeted to their action. The above movements are performed with great rapidity, and the precipitation and concentration of the ore at the bottom of the box A and the movement of the lighter and valueless portions of the stock at the top quickly effected, and any tendency of the stock to pack within the box A is entirely overcome and prevented. The shock and disturbance experienced by the stool; when the box A comes in contact with the abutmentpost M causes the ore, as it is concentrated, to work or move gradually toward the inclined portion of the said box, where it can be easily removed, while the worthless portions are floated over the riflle-board at the other end of the box A into any suitable chute. The perforations in the diaphragm allow any particles of quicksilver contained in the ore to pass by gravity through the diaphragm to the space beneath, which is occupied by aremovable drawer or tray, 0, to facilitate the removal of the quicksilver. The threaded end of the rod G and thumb-nut] permit the adjustment of the oscillatory movement of the bar I, and hence the longitudinal vibration of the box A.

From the foregoing it will be apparent that the machine is simple, reliable, and durable in construction and operation, and that the concentration and removal of the ore are effooted with certainty and dispatch.

We claim- 1. The combination, in an oi'econcentrator, of a box or receptacle containing a perforated diaphragm, a water-pipe communicating with the box below the diaphragm, and devices for imparting a coneussive blow to the box, substantially as set forth.

2. The combination, in an ore-concentrator, of a pendent box or receptacle containing a perforated diaphragm, a water-pipe communicating with the box below the diaphragm, a feed-hopper having a perforated bottom, and devices for imparting a eoncussive blow to the said pendent box, substantially as set forth.

3. The combination, in an ore-concentrator, of a pendent box or receptacle containing a perforated diaphragm, a water-pipe communicating with the said box below said diaphragm, devices for imparting to the box a eoncussive blow, and means for regulating the violence of said blow, substantially as set forth.

4. The combination, in an ore'concentrator, ofa pendent box or receptacle containing a perforated diaphragm havin gone endinelined, a water-pipe communicating with the pendent box below the diaphragm, and devices forimparting a coneussive blow to the said box or receptacle, substantially as set forth.

5. The combination, in an ore-eoneentrator, of a pendent box or receptacle containing a perforated diaphragm having one end inclined, a water-pipe communicating with the pendent box below the diaphragm, a removable drawer or tray, 0, and devices for imparting a concussive blow to said pendent box, substantially as set forth.

6. The combination, in an ore-concentrator, of box A, having a diaphragm, G, pendent bar H, cam I, rod G, post M, and contracting springs X, substantially as and for the purpose described.

In testimony whereof we have hereunto set our hands and seals.

JOHN W. BAILEY. BURGESS B. WARFIELD. Witnesses for John V. Bailey:

JAMES C. S'LARKMATHER, CHARLES DONNELLY. \Vitnesses for Burgess B. Varfield:

LLOYD W. Onasn, FRANCIS M. Sxrrr.

[1.. s] ['L. s] 

